Rail-chair.



A.HAARMAN N.I

RAIL CHAIR.

APPLICATION FILED DEG. 23, 1907.

fi'znesses In 0622 low PATENTED JULY 28, 1908.

in place on the sleeper.

STATES PATENT OFFICE.

" AUGUST HAARMANN, or OSNABRUCK, ERMA Y.

RAIL-CHAIR.

Application filed December 25;}, 1907. Serial No. 407,763.

0 make and use the same, reference being had to the accompanying drawin s, and to letters or figures of reference marke thereon, which form a part of this specification.

My invention relates to bed plates for rails 15,; and has for. its object to improve the construction of such-plates as shown in, my application Serial No. 374,639, filed May 20th, 1907. v

Practical trials have shown that by chang- 20 ing the construction of the hook on the under side of the bed plate a better fastening at the outer side of the rail can be obtained and the bed late can be inserted in place on the meta sleeper with greater facility.

Referring to the drawing which illustrates my invention and is partly in elevation and partly in section S designates an iron railway sleeper provided with a hole or slot .9 in its top at the outside of the rail t. The bed so plate p has a lug a on its under face, a portion of the cross section of said lug at its root adjacent the plate being of substantially the same length and breadth as the slot 8 so as to practically fill the hole when the bed plate is On the inslde the lug at its root has a'hei ht 'y lessthan the thickness :1; of the top of t e sleeper and further below and ranging toward the left projects a hook b the top face of which forms 40 substantially a right angle to the body of the lug, as shown, and lies arallel to the under face of the top of' thes eeper when in place and at a distance 2 therefrom, less than the distance y. On the upper part the bed plate has as is usual a hook p for taking .over the Outer side of the fiangeof the rail t, while the inner side of-the flange is engaged by the usual clamping plate a. This plate u has one edge recessed to conform to the inner flange edge, the other edge of the plate is beveled and rests on and engages the incline 11 formed at the inner end of the-bed plate p. A bolt 1) passes through the clamping plate and through the slot 8 in the sleeper S.

his bolt has at its lower end a hook c which takes under the top of the sleeper when Specification of Letters Patent.

lug a to leave the Patented July 28, mos.

turned into the position shown in the rawing. A nut 11 on the. upper end of the bolt serves to depress the clamping plate 'u against the incline p and thereby forces the rail against the hook p of the bed plate. The distance 2 that the hook 1) lies below tlib under side of the top of the sleeper may be smaller'than the distance y, as for inserting the k 1) into the hole 8 of the sleeper the bed p ate p can slightly be tilted about its outer edge a touching the top face of the sleeper. The'bed plate being thus turned the hook b of the lug (1 makes a smaller angular movement than the reduced portion y of the lug. Corresponding to the difference in these movements the distance of the upper edge of the hook from the under sideof the top of the sleeper-may besmallerthan the height of the reduced lu portiony. ,In order to insert the ed'plate, it is sunrcient to place it'substantially horizontal between the rail and sleeper so that the hook I) will lie directly over the hole or slot 8 in the sleeper. The inner endof the bed .plate being then liftedito turn aboutthe outer end a, th'en lowered in place and simultaneously gi ing a slight shove to the left the hook b willpass under the top of the sleeper. The chair is then allowed to drop and the lug a substantially fills the slot 8. For the removal of the bed plate-the reverse of this operation .will be performed.

' The improvement offers many advantages in that for instance'the bed plate can be inserted and removed with one hand while'the other hand, remains free for lifting the rail or other. manipulation. A further advantage is that the vertical movement of the bed plate at its other end is, very small, that is the vertical lift of the bed palte at the other end can only amount to the distance 2, which-is less than the distance y, t. e. the height of the reduced portion of the lug a. is screwed in place by means of the bolt 1'; and nut 12 on the inside of'the rail, the lifting of the plate p or its tilting about its outer end is practically im sli ht vertical ift at the outer side. of the rail wil take place, and since the distance z is less than the distance 'y this lift cannot be sufficient to cause the reduced portion of the slot 8 and permit an accidental dis lacement of the bed plate. 1.

It will e seen from the above that the hook of the lug prevents the bed plate from being disconnected from the sleeper in ad- If the bed plate ossible-and at most only a justing the track which is being laid. loss ot time and the trouble are therefore spared that otherwise occur with bed plate lugs having no hooks. I11 manipulating the sleepers and rails i. e. in sidewise shifting, liftin and lowering of the same, such lugs I are e -ten unintentionally lifted out and need to be reinserted in a troublesome mannerinto the slot of the sleeper before the further adjustment of the tracli can be continued.

1 claim:

In combination with a slotted railway sleeper of a bed plate having a rail flange engaging hook on its upper face and a sleeper engaging hooked lug on its under face, said I hooked lug substantially filling the slot when l se iest The f the bed plate is in operative position, and

having a reduced portion at its inside smaller in height than the thickness of the top of the sleeper but greater in tance of the hook from the under face of the sleeper top and means at the end of the bed. plate opposite said hook to secure said end to the sleeper, p

In testimony that I-cleim the foregoing as my invention, I have signed my name in presence of two subscribing Witnesses.

AUGUST HAARMANN- Witnesses:

WILHELM FLAsonE, CLEMENS HEOKMANN.

height than the dis-- 

